| 专利名称： | Camera and piezo ceramic motor therefor |
| 公开（告）号： | |
| 公开（公告）日： | 2007-02-22 00:00:00 |
| 申请（专利）号： | US20050208468(US2007040474) |
| 申请日： | 2005-08-18 00:00:00 |
| 发明（设计）人： | |
| (申请)专利权（人）： | CHEN JACK (US) |
| 内容： | A camera has an axially moveable cylinder retaining a lens and a piezo ceramic motor for axially moving the cylinder. The motor has a piezo ceramic drive member that incrementally advances the cylinder in response to the application of an electric potential and a piezo ceramic brake that locks the cylinder against movement. The drive member and the brake are alternately energized to advance the cylinder in a series of incremental steps. |
发布日期：2007-08-22 15:37:00